The problem of two-point resolution has been discussed by many criteri a and methods.The most famous ones are the Rayleigh and Sparrow criteria.Howev er,they are only applicable to the two limited states of completely coherent li ght or completely incoherent light,while the universal case of partially cohere nt light is studied less.In this paper,we designed a circular aperture imaging system with partially coherent light illumination to make an analysis of the tw o-point resolution.Based on the experimental platform,we established the math e matical model of the light intensity distribution of two object points on the im age surface.MATLAB is used to simulate the image surface light intensity of the two object points at different distance and arbitrary coherence.The simulation results show that when the distance between the two points is constant,the res olution of the two object points decreases with the increase of the coherence be tween the two point light sources,and when the coherence is constant,the resol ution of the two object points increases with the increase of the distance betwe en the two point light sources.In this paper,the ratio between the distance of image plane and the one of object plane is used to describe the system′s abili ty to distinguish between two object points.The analysis explores the three situ ations in which two object points can be distinguished,cannot be distinguished, and can be distinguished completely.At the same time,we got the law of two-p o int resolution with an arbitrary degree of coherence and the distance between tw o points.The circular hole imaging system generally is satisfied with the law. We designed an imaging system experimental platform with two object points at an y degree of coherence.The experimental results show that the two object points can be resolved at the distance of 1.5mm under this experimental condition,whi ch indicates that the experimental results are basically in agreement with the t heoretical simulations.